baber/WOPTO huggingface dataset:
Patent GB-763506-A (GB)
Title: Monitoring apparatus for automatic pilot systems
IPC: G05D1/00
Filed: 1954-05-14
Abstract: 763,506. Automatic control systems. BENDIX AVIATION CORPORATION. May 14, 1954 [June 30, 1953], No. 14249/54. Class 38 (4). An automatic control arrangement for an aircraft having a main control surface 10 and a trim surface or tab 12, includes a safety device for disconnecting the trim tabs 12 from its drive when the load on the main control surface 10 exceeds a predetermined value. As shown, pitch deviation is detected at 13 by an artificial horizon gyro, and applied over amplifier 17 to a servomotor 19 having a follow-up circuit comprising rotor 25 of inductive device 22; servomotor 19 actuates shaft 23 to move link 42 and rotate arm 51 about an axis 52; arm 51 is coupled by springs 53 to the main control surface 10, and is coupled by link 57 to a control tab 11. The springs are such that a variation in pitch first results in a movement of the main surface 10 and control tab 11 as a unit to correct the pitch variation until the loading of the surface 10 is just greater than the torque produced by springs 52; further rotation of arm 51 then results in a deflection of the control tab 11 relative to the surface 10 and in such a direction as to produce a torque on the main surface 10 as to aid the torque exerted by the springs 52. This effect continues until the surface 10 and control tab 11 are again in line and the pitch deviation corrected. Amplifier 17 also feeds a servomotor 60 which is coupled through an irreversible transmission gear 61 to actuate a trim tab 12, so that variation of pitch due to a change in loading of the aircraft (fuel consumption or passenger movement) may be compensated by a permanent deflection of the trim tab 12. The trim tab 12 when deflected exerts a loading on the main surface 10, and should the main surface 10 become locked or motor 19 inoperative, this loading may become so great as to produce undesirable results when the manual or electrically-operated clutches 36, 35 are opened to place the aircraft under manual control at 31. To avoid this overloading, clutch 70 is opened when the angle between the main surface 10 and arm 51 exceeds a predetermined value; to this end, an arcuate contact 75 is carried by the main surface 10, and arm 51 carries a contact 77 rotatable over the arcuate contact 75, so that when the relative displacement exceeds a given angle, clutch 70 is opened and the trim tab 12 is no longer driven. Specifications 632,309, [Group XXIV], and 662,831 are referred to.
Patent GB-736913-A (GB)
Title: Improvements in pneumatic conveyors for flour mill stocks
Inventor: LOCKWOOD JOSEPH FLAWITH
IPC: B65G53/42
Filed: 1953-05-21
Abstract: 736,913. Pneumatic conveyers. SIMON, Ltd., H. May 17, 1954 [May 21, 1953], No. 14278/53. Class 78 (1). A collector, conveyer and exhauster for a flour-milling machine comprises a hopper a which delivers stock through a bottom opening b into an air channel c leading to a conveyer line d, a rearward extension c<SP>1</SP> of the channel c communicating at d<SP>1</SP> with the hopper at a point above the level at which stock accumulates to provide an exhaust for the machine. Slides f, g mounted on the inside of the hopper can be moved across the opening b. The slide f controls the air flow through the channel c<SP>1</SP> and the slide g controls the discharge of the stock. The hopper a is within the machine frame above floor level and the air channel c is above floor level beneath the machine.
Patent GB-218271-A (GB)
Title: Improvements in or relating to the manufacture of concentrated acetic acid from diluted acetic acid
IPC: C07C51/48
Filed: 1924-06-12
Abstract: Dilute acetic acid, such as fermentation acid, crude pyroligneous acid, or the by-product from acetylation processes is concentrated by extraction with a solvent insoluble or nearly insoluble in water and with a considerably higher boiling point p  than acetic acid.  The extraction is preferably carried out counter-current-wise in an extraction column and the extract is distilled, the first fraction consisting of comparatively dilute acetic acid which is returned to the process and the major portion of the distillate being acetic acid of 70-80 per cent strength suitable for direct conversion into glacial acetic acid.  Suitable solvents are organic liquids containing oxygen and of boiling-point higher than 150 DEG  C., such as cresols and their homologues, aliphatic ketones or fatty-acids, or mixtures of these bodies, and heavy wood tar oils, and the process is exemplified by the use of crude cresol, beech wood tar oil and anthracene oil.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use as solvents of polyvalent phenols and their ethers such as guaiacol, hydrogenated phenols such as hexahydrocresols, cyclic ketones, and brown and black coal tars and gives an example using hydrogenated tar cresol.  This subject-matter does not appear in the Specification as accepted.
Patent GB-122148-A (GB)
Title: Improvements in Hose Pipe Clips.
Inventor: LUARD EDWARD SYDNEY
IPC: F16L33/04
Filed: 1918-09-03
Abstract: 122,148. Luard, E. S. Sept. 3, 1918. Clips, band.-In a clip of the type having a band tightened by a screw-bolt 3 with a guard 4 bridging the gap between the ends of the band, the guard 4 is attached to one end of the band and has flanges which embrace the other end. The band may be recessed as shown at 9, 10, so that, after tightening up the clip, its surface is practically continuous. The guard 4 is preferably attached by lugs' 7, 8 passed through apertures 7<a>, 8<a> in the strap and bent down. In the modification shown in Fig. 5, the lugs 7, 8 are bent down in the same direction and the apertures 7a, 8<a> are large enough to permit a certain amount of sliding motion between the guard and the band.
Patent GB-965637-A (GB)
Title: L-ornithine l-aspartate
IPC: A23L27/21
Filed: 1963-04-10
Abstract: The invention comprises L-ornithine L-aspartate and its monohydrate, and their preparation by (a) reacting L-ornithine with L-aspartic acid or (b) reacting DL-ornithine with L-aspartic acid and fractionally crystallising the product. D-Ornithine L-aspartate is obtained as a by-product in process (b).  The compounds of the invention may be used for the treatment of hyperammoniemia.
Patent GB-1028231-A (GB)
Title: Mouldable copolymers
Inventor: ROSE JOHN BREWSTER
IPC: C08F10/00
Filed: 1962-04-13
Abstract: Maleic anhydride and isobutylene are polymerized with sufficient of another ethylenically unsaturated monomer to yield a terpolymer product having a lower melt viscosity than the corresponding maleic anhydride/isobutylene copolymer, but containing at least 25 mol. per cent of each of the maleic anhydride and the isobutylene. Polymerization is in bulk or solution using free-radical catalysts. The monomers used are selected from alkenes, cycloalkenes, aralkenes, vinyl ethers, isopropenyl ethers, unsaturated carboxylic acids and their esters, nitriles, anhydrides and imides, and halogensubstituted alkenes.
Patent GB-1404246-A (GB)
Title: Recovery of nickel
IPC: C22B15/00
Filed: 1973-03-26
Abstract: 1404246 Nickel and copper recovery ANACONDA CO 26 March 1973 [23 June 1972] 14421/73 Heading C1A Nickel and optionally copper are recovered from sulphidic minerals by leaching a slurry of the minerals in aqueous solution containing ammonium sulphate and free ammonia in one, or sequentially a series of closed leaching vessels at low pressure (<10 p.s.i.g.) at a temperature of 65-80 C., whilst recirculating oxygen bearing gas from above the slurry to below the surface thereof, vigorously agitating the slurry with a power input of 0À05 h.p./cu. ft. of slurry and introducing fresh oxygen into the slurry, and withdrawing from the vessels a solution containing the nickel (and copper if present) complexed with the ammonia. Free ammonia may be added to at least the first of the vessels at a rate equal to its consumption, and the concentration of the ammonia may be correlated with the slurry temperature which gradually rises through the series whilst the pH decreases from about 10 to 9À5. The solution may be treated to recover the nickel (and copper) and form ammonium sulphate solution which may be recycled.
Patent GB-1268458-A (GB)
Title: Improvements in and relating to the preparation of cobalt doped gamma ferric oxide
IPC: G11B5/706
Filed: 1970-03-25
Abstract: 1,268,458. Magnetic materials. AMPEX CORP. 25 March, 1970 [7 May, 1969], No. 14434/70. Heading HlH. [Also in Division Cl] Acicular cobalt-doped gamma Fe 2 O 3  is prepared by selecting an iron compound from alpha FeOOH and alpha Fe 2 O 3 , the compound consisting of particles having an average length of between 0À1 and 2À0 microns and a length to width ratio of at least 1À5 to 1, forming an aqueous mixture of an iron compound with either cobalt nitrate, cobalt acetate or cobalt formate the proportion of cobalt in the mixture being from 0À5 to 25 atomic % of the iron, drying the mixture, heating the dried mixture at a temperature between 150‹ and 600‹ C. to produce cobalt doped alpha Fe 2 O 3 , heating this in a hydrogen atmosphere at a temperature of not more than 600‹ C. to produce cobalt doped Fe 3 O 4  and heating this in an atmosphere of free oxygen at a temperature between 100‹ and 600‹ C. to produce the desired product. If the iron compound is alpha FeOOH it may be dehydrated by heating before or after being mixed with the cobalt compound. Sodium hydroxide may be added to the aqueous mixture, before the mixture is dried, to precipitate the cobalt as the hydroxide. The product of the invention has specified magnetic properties, e.g. a coercivity ranging from 265-765 oersteds. Saturation and remanent magnetization values are given in the examples. As illustrated by Example 5 the product of the invention may be made into tapes by mixing with carbon black, P.V.C. resin, lecithin and solvents, and after mixing adding more P.V.C. resin, polyurethane resin and further solvents, continuing mixing and then coating the resultant slurry on polyester film. Test results for such tapes are given in the example. In other examples other resins, e.g. butylated melamine formaldehyde and vinylidene chloride acrylonitrile are specified together with dispersing and other agents.
Patent GB-893211-A (GB)
Title: Fabrication of magnetic material
IPC: H01F1/147
Filed: 1959-04-28
Abstract: 893,211. Heat treatment of silicon iron alloys. GENERAL ELECTRIC CO. April 28, 1959 [May 26, 1958 (2)], No. 14436/59. Class 72. [Also in Group XXII] A method of preparing cube texture magnetic sheet from a cast metal composed of 2-6% silicon 0À02-0À1% carbon and the balance iron comprises hot rolling with a total reduction of 40%, cold rolling with intermediate annealing and a final anneal under non oxidising conditions, the hot rolled band being decarburised and annealed to a carbon content of less than 0À01%. The hot rolled band may be warm rolled at 150-450‹C. with at least one reduction of 40-85% and annealed at 900-1300‹C. under non-oxidising conditions. The original casting may be of random crystal orientation or have a columnar crystal structure but sufficient carbon must be present to produce austenite in the hot rolled stage. The hot rolling temperature may be 800-1350‹C., the intermediate annealing temperature may be 800-1150‹C. in a dry hydrogen atmosphere and the final anneal may be at 900-1350‹C. in a dry hydrogen atmosphere. Decarburising may be carried out at 1000- 1350‹C. in dry hydrogen, or 700-1050‹C. in wet nitrogen, or in a barium chloride bath at 800- 1350‹C. Specification 870,209 is referred to.
Patent GB-495817-A (GB)
Title: Improvements in or relating to tires and method of making same
IPC: B29D30/36
Filed: 1937-04-17
Abstract: 495,817. Tyres. FIRESTONE TYRE & RUBBER CO., Ltd. April 17, 1937, No. 14440/38. Convention date, April 18, 1936. Divided out of 493,921. [Classes 70 and 87 (ii)] Rubber tyres are made by fabricating a cylindrical band of rubberized cord fabric with marginal beads and a tread portion and an internal impervious coating of rubber, forcing the band into conformity with a mould by direct fluid pressure, and vulcanizing. The bead portions 3 are clamped between the surfaces 8, 9 of the two halves of the mould, which are then brought together, while expanding the tyre by direct fluid pressure, preferably by cold water under pressure. The outside is subjected to vulcanizing temperatures. Thereafter the cold water is replaced by hot water at the vulcanizing temperature and pressure. Specification 493,921 is referred to.
Patent GB-551353-A (GB)
Title: Improvements in and relating to the rolling of magnesium and the alloys thereof
IPC: B21B3/00
Filed: 1941-11-11
Abstract: 551,353. Rolling magnesium. ZUBLIN, J. Nov. 11, 1941. No. 14533. Convention date, Nov. 29, 1940. [Class 83 (iv)] Magnesium and its alloys are rolled whilst coated with a layer that protects the oxide skin from damage and hinders oxidation during annealing and storage. Examples of suitable substances are tar fat oils, tars, carbolineum, anthracene-oil and heavy oils.
Patent GB-642457-A (GB)
Title: Improvements in or relating to the preparation of organo antimony derivatives
IPC: C07F9/90
Filed: 1948-05-31
Abstract: An alkali metal salt of 4-melaminyl-phenylstibinic acid is prepared by treating the diazo compound of 4-melaminyl-phenylamine with antimony trichloride and treating the complex thus formed with an excess of alkali in a medium comprising a lower monohydric alcohol and glycerine and glycol.  The free acid may be obtained by acidifying the solution of the above alkali metal salt.  In the example, potassium 4-melaminyl-phenylstibinate is prepared using methyl alcohol and glycerine or glycol as the reaction medium for the treatment with potassium hydroxide.  The free acid is obtained by acidification, and is then converted to the sodium salt by treatment with aqueous caustic soda.  4-Melaminyl phenylamine is obtained either by the action of 2 : 4-diamino-6-chlorotriazine on p-amino-acetanilide and the resulting 1-acetylamino - 4 - melaminylbenzene is deacetylated with caustic soda, or by reacting p-aminoacetanilide with cyanuryl chloride and then with ammonia.  2 : 4-Diamino-6-chloro-triazine is prepared by the action of ammonia at 40 DEG  C. on cyanuryl chloride.
Patent GB-311108-A (GB)
Title: Improved bolting or latching device adapted for preventing unauthorized use of motor vehicles
IPC: B60R25/00
Filed: 1928-05-18
Abstract: 311,108. Haddan, P., (Grant, C. B.). May 18, 1928. Guarding against unauthorized use.-A casing 9 is provided with detents for engaging the pedals 4 and with connections to the self-starter, carburetter, and ignition lever, for preventing the starting of the engine. When a lock 12 is freed by means of a key 13 a rod 10 may be turned by a handle 14 through a universal joint 11. The motion of the rod is transmitted to a shaft 24 traversing the casing 9, Fig. 4, and bearing a cam 26 between two pivoted spring-pressed levers 28, 29. These are thereupon moved apart and cause bolts 32, 33 to protrude from the casing and lock two of the pedals. The shaft 24 also actuates a lever connected with the ignition and carburetter controls and another connected with the self-starter to lock it or its switch.
Patent GB-119461-A (GB)
Title: Improvements in Ejector-condensers.
IPC: F28B3/04
Filed: 1918-09-10
Abstract: 119,461. British Westinghouse Electric & Manufacturing Co., (Assignees of Ehrhart, R. N.). Sept, 19, 1917, [Convention date]. Ejector condensers. - Consists in securing reduced dimensions by the provision of a number of shallow combining or diffusing-cones in place of a single cone, and in an improved arrangement of the condenser. Exhaust steam entering at the port 10 is caused by a plate 16 to pass through the combining-cones 8, each similar to but smaller than the single cones previously employed, into the condensate well 6, the ejecting and condensing water being supplied to each nozzle 13 from a water-box 11. One or more air outlets 14 with splash-preventing baffle-plates 18 and a condensate outlet port 7 are provided. The apparatus is of small vertical and lateral dimensions, and has all piping connexions arranged laterally so as to be well adapted for boats, locomotives, and for other applications demanding compactness.
Patent GB-675819-A (GB)
Title: Improvements in the manufacture of carbon black
IPC: C09C1/50
Filed: 1950-06-13
Abstract: Furnace carbon black is produced by burning a combustible mixture of a fluid hydrocarbon fuel and a free oxygen-containing <PICT:0675819/III/1> gas while passing through a plurality of parallel, uniformly spaced, elongated passageways of relatively small diameter delineated by walls adapted to withstand high temperatures and to promote surface combustion, and injecting a hydrocarbon to be decomposed into the resultant turbulent stream of hot combustion gases passing from the surface combustion tubes.  Fuel gas under pressure passes through pipe 19 and manifold 18 to jets 16, while air under pressure passes through perforated distributing plate 28.  The resultant combustible mixture passes through burner ports 11 in refractory burner block 10 into coaxially positioned refractory tubes 31 wherein combustion takes place on the surface. The make gas passes from pipe 22 and manifold 20 through refractory tubes 12, which have adjustable intrusion and which are in contact with and surrounded by tubes 31, to effect partial pyrolysis of the make gas, into the oxygen-free combustion products in refractory reaction chamber 1. The resultant gaseous suspension passes through a spray quencher to conventional cooling and collecting means.  The make gas may be injected other than longitudinally.  Specifications 652,518, 652,519 and 670,863 are referred to.
Patent GB-853853-A (GB)
Title: Continuous casting
IPC: B22D11/124
Filed: 1957-05-09
Abstract: 853,853. Continuous - casting machines. AMERICAN SMELTING & REFINING CO. May 9, 1957 [Aug. 27, 1956], No. 14763/57. Class 83 (1). A continuous-casting-mould comprises a graphite block, preferably a composite graphite block of halfsections, with coolant passages in its walls. Reference is made to the casting of steel, silver, nickel, aluminium, magnesium and copper. The apparatus comprises a holding- furnace 10, from which moltenmetal is poured into a tiltable pouring ladle 11, thence via a funnel 12 into the mould 13. The outlet 33 of the funnel, Fig. 2, is of inverted T-shape, with a horizontal outlet passage 36 having at its bottom a narrow slit 34, or a series of holes, to achieve a satisfactory distribution. The mould is mounted on a platform 14 which is verticallyreciprocable by a connecting-rod 39 and links 40-45, and the assembly is mounted on a carriage 15 for horizontal displacement. A starting block 17 is supported on a piston 19. The mould comprises graphite blocks 51, 51 supported within a metal casing and clamped together by bolts 54. Coolant is supplied to manifolds 50, and flows to the main cooling tubes. These each comprise an outer copper tube 85, Figs. 8 and 9, which is oversize with respect to the opening in the graphite into which it fits, and has an expansion rib 85, and a shorter inner tube 80, which has a rib 92 nesting with the rib 85, and two ribs 91 which space the inner tube from the outer tube to provide water passages therebetween. In a modification, the outer tubes 85 are elliptical and a force-fit in the graphite block. The tops of the outer tubes are sealed by caps 88, and coolant from the manifolds flows up the inner tubes and overflows down between the tubes. The openings in the graphite block are relieved at each end, as at 89, 90, so that the tubes assume a slightly larger diameter at the ends to reduce a tendency to longitudinal movement. The manifolds also supply coolant through cross-passages 68, Figs. 3 and 4, to downwardlyangled nozzles 67, and to a lower set of nozzles 84. Coolant is also sprayed from openings 82 in the bends 79 connecting the manifolds to the main cooling tubes. The mould-face has a series of recesses 74 below the nozzles 67, so as to provide a series of ribs which support the casting, and between which coolant is supplied direct to the casting from the nozzles 67. The mould-cavity is tapered. Casting processes; mould materials.-When casting oxygen-free-copper, a protective layer of particles of carbonaceous material such as flake - graphite, lampblack and pulverized - anchracite, is preferably maintained floating on the surface of the melt in the mould. This acts as a protective blanket to prevent oxygenabsorption and, due to the reciprocation of the mould, as a moving mould-wash. Alternatively, a reducing-gas may be used around the molten-metal stream. Specifications 835,854 and 835,855 are referred to.
Patent GB-980693-A (GB)
Title: Curtain wall constructions
IPC: E04B2/92
Filed: 1961-04-24
Abstract: 980,693. Curtain wall panels. OLIN MATHIESON CHEMICAL CORPORATION. April 24, 1961 [May 9, 1960], No. 14784/61. Headings E1B and E1V. [Also in Division B3] A curtain wall panel comprises a plurality of pressure welded metal sheets 2, 3 having an unwelded portion 4 between the sheets extending in a predetermined pattern with the sheets 2, 3 at the unwelded portion being separated from each other to form a design bulged out of at least one external face of the sheets 2, 3, the panel having a border which encloses its unwelded portion. Heat insulating or sound absorbing material may be disposed in said separated unwelded portion or heat insulating material may be disposed adjacent an external face of one of the sheets.
Patent GB-882532-A (GB)
Title: Preparation of cyclic tris(disubstituted phosphinoborines)
Inventor: CASS RAYMOND CHARLES
IPC: C07F9/6596
Filed: 1959-04-30
Abstract: Cyclic tris (disubstituted phosphinoborines) of the general formula <FORM:0882532/IV (b)/1> wherein each R1 which may be the same or different, represents an alkyl, cycloalkyl or aryl radical, containing up to six carbon atoms, which radical may be substituted, are made by reacting 1 mole of a tetra-substituted diphosphine disulphide of the general formula R2PS.SPR2 with from 1.5 to 3.5 moles of lithium, sodium or potassium borohydride at an elevated temperature either (a) in the absence of a solvent, at a temperature above the melting point of the disulphide in an inert atmosphere or (b) in the presence of a solvent at a temperature above 150 DEG C. Lithium borohydride is preferred, but good yields are obtainable using sodium or potassium borohydride by using a lithium halide as catalyst.  Examples describe the preparation of tris (dimethylphosphinoborine) from tetramethyldiphosphine disulphide and sodium borohydride, and tris (diethylphosphinoborine) from tetraethyldiphosphine disulphide and lithium borohydride.
Patent GB-477142-A (GB)
Title: Improvements in or relating to cutting rollers
IPC: B26D1/24
Filed: 1937-05-28
Abstract: 477,142. Cutting paper &c. webs. JAGENBERG-WERKE AKT.-GES. May 28, 1937, No. 14845. Convention date, May 28, 1936. [Class 31 (i)] A roll which co-operates with cutting discs O to cut longitudinally a web of paper, cardboard, &c. comprises a tube R supported on a shaft L and provided with undercut rings S which engage over divided rings G. The rings S may be of T-section and the rings G of L- section, Fig. 1 ; the rings G may instead be of flat section as in Fig. 4 to engage under the rings S. In another form, Fig. 4, the rings S and G are bevelled as shown and further divided rings U are provided. The rings are held together by nuts M.